I saw that too. It's weird. We've been inventing new ways to kill each other for many 1000's of years - will it end? Nope.
Think about this (along the same lines) that Hitler is responsible for putting man on the moon. His rocket scientists we're "imported" here after the war and developed our rocket program that took us too the moon. His engineers were decades ahead of anyone on the planet at the time. They developed the jet engine, swept-wing aircraft, rocket fuels, guidance systems, and many more technologies that we use today. We copied all of those designs - and they are still in use today.
In fact, the argument has been made that if Hitler had not been insane and followed the direction of his air marshals to further develop and use the advance systems under development - that they had a shot at winning the war. That is until we developed the A Bomb - which they were "off" in their calculations and their bomb would have failed. Our German scientists were smarter than his German scientists. Look at all of the things that we take advantage of today that are outcroppings of war machines - the microwave, computers and the internet, toothpaste, chemicals and plastics, advanced compounds - all traced to weapons development and space technologies.
How about the VW Bug. After the war, the British military re-built the VW plant to restart manufacturing VW Bugs. Those same vehicles are still in production to this very day in Mexico.